400d cluster survey

400d cluster catalog

Our main catalog includes extended X-ray sources optically identified with galaxy clusters and with the X-ray flux above 1.4e−13 erg s−1 cm−2 (0.5–2 keV), 242 objects total. A few clusters are not in the main sample because they are associated with the ROSAT targets.

Several objects are legitimate extended X-ray sources but not clusters.

Finally, some of the X-ray detections do not have cluster counterparts; most likely, they are false detections (confused point sources).

Catalog data links: